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-rwxr-xr-xrotord/rotor.cpp269
1 files changed, 17 insertions, 252 deletions
diff --git a/rotord/rotor.cpp b/rotord/rotor.cpp
index 20c6d3a..23e2196 100755
--- a/rotord/rotor.cpp
+++ b/rotord/rotor.cpp
@@ -155,141 +155,7 @@ void Audio_analysis::print_features(){
cerr<<i.second<<" "<<i.first<<endl;
}
}
- /*
- //testing signal routes
- cerr << "Rotor: Signal_output rendering " << duration << " seconds at " << framerate << " frames per second" << endl;
- float step=1.0f/framerate;
- float v=0.0f;
- for (float f=0.0f;f<duration;f+=step) {
- float u=get_output(Time_spec(f,framerate));
- if (!fequal(u,v)) {
- xml_out+=("<signal time='"+ofToString(f)+"'>"+ofToString(u)+"</signal>\n");
- v=u;
- }
- }
- return true;
- */
-/*
-bool Video_output::render(const float duration, const float framerate,const string &output_filename,const string &audio_filename){
- //render out the network
-
- //set up output context
- //then iterate through frames
- //querying graph at each frame
-
- av_register_all();
-
- AVCodec *codec;
- AVCodecContext *c= NULL;
- int i, out_size, size, x, y, outbuf_size;
- FILE *f;
- AVFrame *picture;
- uint8_t *outbuf, *picture_buf;
-
- cerr << "Rotor: rendering " << output_filename << " , " << duration << " seconds at " << framerate << " frames per second" << endl;
-
- codec = avcodec_find_encoder(AV_CODEC_ID_H264);
- if (!codec) {
- cerr<< "codec not found" << endl;
- return false;
- }
-
- c= avcodec_alloc_context3(codec);
- picture= avcodec_alloc_frame();
-
- // put sample parameters /
- c->bit_rate = 400000;
- // resolution must be a multiple of two /
- c->width = 640;
- c->height = 480;
- // frames per second /
- c->time_base= (AVRational){1,25};
- c->gop_size = 10; // emit one intra frame every ten frames /
- c->max_b_frames=1;
- c->pix_fmt = PIX_FMT_YUV420P; //AV_PIX_FMT_RGB24
-
- AVDictionary *options; //= NULL; causes a forward declaration error!?
- options=NULL;
-
- // open it /
- if (avcodec_open2(c, codec, &options) < 0) {
- cerr << "could not open codec" << endl;
- return false;
- }
-
- f = fopen(output_filename.c_str(), "wb");
- if (!f) {
- cerr << "could not open "<< output_filename<<endl;
- return false;
- }
-
- // alloc image and output buffer/
- outbuf_size = 100000;
- outbuf = malloc(outbuf_size);
- size = c->width * c->height;
- picture_buf = malloc((size * 3) / 2); // size for YUV 420 /
-
- picture->data[0] = picture_buf;
- picture->data[1] = picture->data[0] + size;
- picture->data[2] = picture->data[1] + size / 4;
- picture->linesize[0] = c->width;
- picture->linesize[1] = c->width / 2;
- picture->linesize[2] = c->width / 2;
-
- // encode 1 second of video /
- for(i=0;i<250;i++) {
- fflush(stdout);
- // prepare a dummy image /
- // Y /
- for(y=0;y<c->height;y++) {
- for(x=0;x<c->width;x++) {
- picture->data[0][y * picture->linesize[0] + x] = x + y + i * 3;
- }
- }
-
- // Cb and Cr /
- for(y=0;y<c->height/2;y++) {
- for(x=0;x<c->width/2;x++) {
- picture->data[1][y * picture->linesize[1] + x] = 128 + y + i * 2;
- picture->data[2][y * picture->linesize[2] + x] = 64 + x + i * 5;
- }
- }
-
- // encode the image /
- out_size = avcodec_encode_video(c, outbuf, outbuf_size, picture);
- printf("encoding frame %3d (size=%5d)\n", i, out_size);
- fwrite(outbuf, 1, out_size, f);
- }
-
- // get the delayed frames /
- for(; out_size; i++) {
- fflush(stdout);
-
- out_size = avcodec_encode_video(c, outbuf, outbuf_size, NULL);
- printf("write frame %3d (size=%5d)\n", i, out_size);
- fwrite(outbuf, 1, out_size, f);
- }
-
- // add sequence end code to have a real mpeg file /
- outbuf[0] = 0x00;
- outbuf[1] = 0x00;
- outbuf[2] = 0x01;
- outbuf[3] = 0xb7;
- fwrite(outbuf, 1, 4, f);
- fclose(f);
- free(picture_buf);
- free(outbuf);
-
-
- avcodec_close(c);
- av_free(c);
- av_free(picture);
- printf("\n");
-
- return true;
-}
-*/
bool Video_output::render(const float duration, const float framerate,const string &output_filename,const string &audio_filename){
//
@@ -326,123 +192,22 @@ bool Video_output::render(const float duration, const float framerate,const stri
return false;
}
-//new version from libav examples
-/*
- AVOutputFormat *fmt;
- AVFormatContext *oc;
- AVStream *audio_st, *video_st;
- double audio_pts, video_pts;
- int i;
-
- //Initialize libavcodec, and register all codecs and formats. //
- av_register_all();
- //think about this: when to register and unregister?
-
-
- //Autodetect the output format from the name. default is MPEG. //
- fmt = av_guess_format(NULL, output_filename.c_str(), NULL);
- if (!fmt) {
- printf("Could not deduce output format from file extension: using MPEG.\n");
- fmt = av_guess_format("mpeg", NULL, NULL);
- }
- if (!fmt) {
- cerr << "Rotor: could not find suitable output format" << endl;
- return false;
- }
-
- //Allocate the output media context. //
- oc = avformat_alloc_context();
- if (!oc) {
- cerr <<"Rotor: memory error"<< endl;
- return false;
- }
- oc->oformat = fmt;
- snprintf(oc->filename, sizeof(oc->filename), "%s", filename);
-
- //Add the audio and video streams using the default format codecs
- * and initialize the codecs. //
- video_st = NULL;
- audio_st = NULL;
- if (fmt->video_codec != AV_CODEC_ID_NONE) {
- video_st = add_video_stream(oc, fmt->video_codec);
- }
- if (fmt->audio_codec != AV_CODEC_ID_NONE) {
- audio_st = add_audio_stream(oc, fmt->audio_codec);
- }
-
- //Now that all the parameters are set, we can open the audio and
- * video codecs and allocate the necessary encode buffers. //
- if (video_st)
- open_video(oc, video_st);
- if (audio_st)
- open_audio(oc, audio_st);
-
- av_dump_format(oc, 0, filename, 1);
-
- //open the output file, if needed //
- if (!(fmt->flags & AVFMT_NOFILE)) {
- if (avio_open(&oc->pb, filename, AVIO_FLAG_WRITE) < 0) {
- cerr <<"Could not open "<<output_filename<<endl;
- return false;
- }
- }
-
- //Write the stream header, if any. //
- avformat_write_header(oc, NULL);
-
- for (;;) {
- //Compute current audio and video time. //
- if (audio_st)
- audio_pts = (double)audio_st->pts.val * audio_st->time_base.num / audio_st->time_base.den;
- else
- audio_pts = 0.0;
-
- if (video_st)
- video_pts = (double)video_st->pts.val * video_st->time_base.num /
- video_st->time_base.den;
- else
- video_pts = 0.0;
-
- if ((!audio_st || audio_pts >= STREAM_DURATION) &&
- (!video_st || video_pts >= STREAM_DURATION))
- break;
-
- //write interleaved audio and video frames //
- if (!video_st || (video_st && audio_st && audio_pts < video_pts)) {
- write_audio_frame(oc, audio_st);
- } else {
- write_video_frame(oc, video_st);
- }
- }
-
- //Write the trailer, if any. The trailer must be written before you
- // close the CodecContexts open when you wrote the header; otherwise
- // av_write_trailer() may try to use memory that was freed on
- // av_codec_close(). //
- //av_write_trailer(oc);
-
- //Close each codec. //
- if (video_st)
- close_video(oc, video_st);
- if (audio_st)
- close_audio(oc, audio_st);
-
- //Free the streams. //
- for (i = 0; i < oc->nb_streams; i++) {
- av_freep(&oc->streams[i]->codec);
- av_freep(&oc->streams[i]);
- }
-
- if (!(fmt->flags & AVFMT_NOFILE))
- //Close the output file. //
- avio_close(oc->pb);
-
- //free the stream //
- av_free(oc);
-
- return true;
- */
-
bool Video_input::load(const string &filename){
-
+ if (player->loadMovie(filename)){
+ player->play();
+ player->setPaused(true);
+ cerr<<"loaded "<<filename<<", "<<player->getDuration()<<" seconds "<<", "<<player->getWidth()<<"x"<<player->getWidth()<<endl;
+ return true;
+ }
+ return false;
}
+Image* Video_input::get_output(const Frame_spec &frame){
+ //wonder about the actual mechanism used by gstreamer
+ //have to implment callback when seek is ready?
+ //presume gstreamer caches a loaded frame?
+ //if (player->isLoaded()){
+ // image.setup(player)
+
+ //}
+ return nullptr;
+};
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